17. Jika diketahui garis g melalui titik (3, -7) dan titik (-2, 6), maka persamaan garis h yang

Gradien = y² – y¹ / x² – x¹

= 6 – (-7) / – 2 – 3

= 6 + 7 / – 5

= 13 / – 5

= – 13 / 5

Tegak Lurus –> M¹ × M² = – 1

M¹ × M² = – 1

– 13 / 5 × M² = – 1

M² = 5 / 13

Persamaan Garis

y – y¹ = M² ( x – x¹ )

y – ( – 1 ) = 5 / 13 ( x – 5 )

y + 1 = 5 / 13 ( x – 5 )

y + 1 = 5 / 13 x – 25 / 13

__________________ × 13

13y + 13 = 5x – 25

13y – 5x = -25 – 13

-5x + 13y = -38

____________ × – 1

5x – 13y = 38